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Warm-up

Session 17. Simplify each expression completely. Warm-up. Daily Quiz. Write each expression as a single power of the base. 7 3  7 6 (y 4 ) 3 Simplify each expression. (2y) 4 (3b 3 ) 2  b. Turn this in. Take out your homework. 7.2 Zero & Negative Exponents.

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Warm-up

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  1. Session 17 Simplify each expression completely. Warm-up

  2. Daily Quiz

  3. Write each expression as a single power of the base. • 73 76 • (y4)3 Simplify each expression. • (2y)4 • (3b3)2  b Turn this in. Take out your homework.

  4. 7.2 Zero & Negative Exponents

  5. Use your calculator to evaluate. What can you conclude? A nonzero number to the zero power equals one. • 50 • (-2)0 • (.45)0 • (1/7)0 • (1239)0 • 00

  6. Negative exponents move terms to the other part of the fraction.

  7. 4 is downstairs. We will move it… Negative exponents move terms to the other part of the fraction. (reciprocal) Example 1: Evaluate

  8. x is downstairs. We will move it… Example 2

  9. -9 is upstairs. We will move it… Example 3

  10. What do we know that we can do with these exponents? What do we know that we can do with these exponents? Now let’s include what we learned from last class.

  11. Evaluate the expression without using a calculator.

  12. Rewrite the expression with positive exponents.

  13. Class work:SPW 65What do you call it when a plane comes down in a garbage heap? • Turn this in on the cart when you are finished • Make sure your name is on it

  14. Work p. 452 21 – 39 by 3s and 51 – 62 all

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